// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// @dart = 2.9

import 'dart:ffi';

import "package:ffi/ffi.dart";

main() {
  final data = calloc<Uint8>(3);
  for (int i = 0; i < 3; ++i) {
    data.elementAt(i).value = 1;
  }
  calloc.free(data);
}
